Squawk 7600 transmission — ASH4012
2025-10-21 17:40 UTC· KIAD → KBDL· UNITED AIRLINES INC· E75L
ASH4012 (United Airlines) was operating from KIAD to KBDL on 2025-10-21. SkyMeter recorded a 7600 transponder transmission at 17:40 UTC. Code 7600 indicates a lost-comms / NORDO state; brief transmissions are often transient radio or transponder issues that resolve without crew action. Trace data at the event: 10050 ft AGL, 243 kt GS. METAR at the time reported 10 kt wind, 7 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.
Active FAA TFR during this flight
Source: FAA TFR archive (hourly snapshot)- SECURITY5/2811 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–1,000 ft
NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local
View FAA NOTAM →
SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.
Pilot review data
- 10050 ft AGL at event
- 243 kt ground speed
- 0 fpm vertical
- 10 kt wind
- 7 kt crosswind component
Flight context
- ASH4012
- United Airlines
- E75L
- KIAD → KBDL
- 2025-10-21 17:40 UTC
All events on this flight
Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data